蒸発時の土壌表面とその近傍における液体水と水蒸気の局所熱力学的平衡について

• 小林 哲夫

  九州大学農学部

書誌事項

タイトル別名

• A Local Thermodynamic Equilibrium Between the Vapor and Liquid Phases of Water at and near Soil Surfaces During the Period of Evaporation.

抄録

It was already confirmed that a local equilibrium exists between the vapor and liquid phases of water in soils with a good degree of approximation under natural conditions (Milly, 1982). In the present paper, it is shown that the equilibrium can be regarded to exist also at and near the soil surface during evaporation. This result suggests that the experimental formulas proposed to be used in numerical weather-climate models to estimate the 'soil surface humidity' from the water content at the surface are not the replacements to the thermodynamic equilibrium formula (Eq. (7) in the present paper) (Lee and Pielke, 1992) but mere empirical formulas without much physical meaning, because they are greatly influenced by the resistance to vaper movement near the surface.

収録刊行物

• 水文・水資源学会誌

  水文・水資源学会誌 9 (3), 280-284, 1996

  水文・水資源学会

キーワード

• 蒸発,土壌水,熱力学的平衡

詳細情報

• CRID: 1390001204439049344
• NII論文ID: 130003664445
• DOI: 10.3178/jjshwr.9.280
• ISSN: 13492853
• ISSN: 09151389
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可